DVD-only special of REC. This is a special episode 8 of 10 on the DVD, which is episode 7.5 of the original 9. It is entitled "The Unforgiven".
Fumihiko and Aka go out to eat and come across Tanaka, who had just been dumped by her boyfriend. She pressures him to drink with her for the night and Aka becomes jealous. When Tanaka is drunk, Fumihiko takes her home, much to Aka's dismay and suspicion. The next day, Tanaka tells Aka that nothing happened.